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Stories, updates, insights, and original analysis from The Planetary Society.

Is Opportunity near Lunokhod's distance record? Not as close as we used to think!

A few weeks ago, a press release from the Opportunity mission celebrated Opportunity's surpassing of the previous NASA off-world driving record. That record was set in December 1972 by the Apollo 17 astronauts aboard their Lunar Roving Vehicle. They seem very close to Lunokhod 2's stated 37-kilometer driving record, but hold your horses -- we now know Lunokhod went longer than we thought.

Enormously detailed photo of Kasei Valles from Mars Express

ESA celebrated the tenth anniversary of Mars Express' launch with a several-day science meeting during which they issued lots of press releases and numerous spectacular photos. My favorite of them all is this enormous image of Kasei Valles on Mars.

A Little Moonlight

From far away, or from so near you could almost touch it, the moon is beautiful.

Great News: New Horizons to "stay the course" at Pluto

This is extremely good news: after more than a year of analysis, the New Horizons mission and NASA have concluded and agreed that New Horizons' originally-planned trajectory past Pluto is likely safe from dust.

Launch is coming! LADEE arrives at Wallops

It's a big day for any space mission: the shipping of the spacecraft from its assembly facility to its launch facility. That happened for the next lunar mission, LADEE, on June 4, 2013.

Mars Exploration Rovers Update: Opportunity Departs Cape York, Breaks Apollo Record

It was a merry and mighty month of May for the Mars Exploration Rover mission: Opportunity finished a blockbuster study of Matijevic Hill finding the best evidence yet for an ancient, potentially habitable environment, and then embarked on its first real road trip in two years. The robot field geologist had barely gotten underway on its journey when it surpassed the Apollo 17 lunar rover distance record to become the most traveled NASA vehicle on another planetary body.

Dawn Journal: Thrusting to a new personal best

Traveling from one alien world to another, Dawn is reliably powering its way through the main asteroid belt with its ion propulsion system. Vesta falls farther and farther behind as the spacecraft gently and patiently reshapes its orbit around the sun, aiming for a 2015 rendezvous with dwarf planet Ceres.

Lesser-known views of Uranus and Neptune

Despite the fact that Voyager 2 returned relatively few high-resolution images from either Uranus or Neptune, there are many more photos in the archives than regularly make it to public view.

Astronomy Enters a New Era

A live conversation about just a few of the powerful new instruments that will revolutionize our knowledge of the cosmos once again.

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